Grub2's chainloader cannot load extlinux (syslinux)
Bug #469568 reported by
gutschke
This bug affects 4 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
grub2 (Ubuntu) |
Expired
|
High
|
Unassigned |
Bug Description
As reported on the Grub developer's mailing list (http://
Among others, this affects users who want to chainload extlinux (part of the syslinux package) from Grub2. I believe, this refers to the same bug that was discussed by the Syslinux author at http://
I forward-ported the patch from the Grub mailing list, and it fixes the problem for me. The patch is attached to this bug report.
affects: | ubuntu → grub2 (Ubuntu) |
Changed in grub2 (Ubuntu): | |
status: | New → Triaged |
importance: | Undecided → High |
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BTW, the reason I need this feature is so that I always have quick access to an emergency rescue system. I copied the contents of the Ubuntu installation DVD into /boot/rescue and then installed extlinux to boot this system. Extlinux is the preferable option as the installation DVD already uses isolinux which can trivially be converted to extlinux. In fact, I am surprised the installation disk doesn't come with instructions on how to do this.
I then tell Grub2 to add a menu entry to the boot entry which lets me start the rescue system instead of going through the normal boot process.
This comes in handy on a laptop as I am not normally in the habit of taking a rescue disk with me -- in fact, I don't even normally take the DVD drive with me. But always having access to a rescue disk is definitely very reassuring.